(2R,3R,5S,8R,10S)-2-[(1R,3R)-7-((2S,3S,5R,6S)-3,5-Dimethyl-6-phenylsulfanyl-tetrahydro-pyran-2-yl)-5-hydroxy-3-methyl-1-triethylsilanyloxy-oct-7-enyl]-8,10-dimethyl-3-triethylsilanyloxy-1-oxa-6-aza-spiro[4.5]decane-6-carboxylic acid propyl ester 在
2-碘酰基苯甲酸 作用下,
以
二甲基亚砜 为溶剂,
反应 3.5h,
以85%的产率得到(2R,3R,5S,8R,10S)-2-[(1R,3S)-7-((2S,3S,5R,6S)-3,5-Dimethyl-6-phenylsulfanyl-tetrahydro-pyran-2-yl)-3-methyl-5-oxo-1-triethylsilanyloxy-oct-7-enyl]-8,10-dimethyl-3-triethylsilanyloxy-1-oxa-6-aza-spiro[4.5]decane-6-carboxylic acid propyl ester